Shortly after 5.30pm on Tuesday, June 8, crews were called to a bushfire which is believed to have been deliberately lit in Ourimbah State Forest.
The fire was on Red Hill Rd, off Yarramalong Rd, at Wyong Creek.
Crews responded from Wadalba Rural Fire Service (RFS) and Tuggerah Rural Fire Brigade, with its heavy tanker, Tuggerah 1, carrying 3,500 litres of water and six firefighters.
On arrival, crews found a small area of bush and a pile of logs well alight.
The RFS firefighters contained the immediate threat and the incident was handed over to a NSW Forestry Corporation crew which had been called in by the RFS crews.
A spokesperson for the Forestry Corporation said the fire had been contained to a small pile of bark and no bushland was impacted.
The fire appeared to have been deliberately lit and an investigation into the incident is a matter for the RFS, the spokesperson said.